Which of the following is the best description of a chemical reaction?

answer; ///i believe the correct answer is (aids) acquired immune deficiency syndrome;

d. changes in climate and historical records

hope this

the answer to the blank provided is “an autosomal gene that is required for the expression of genes on the x chromosome”.

testis-determining factor, abbreviated as td, which is more popularly known as sex-determining region y or sry protein, is a dna-binding protein or  gene-regulatory protein/transcription factor, encoded by the  sry gene. it is the gene responsible for the initiation of male gender determination in humans.